Power Supply Duty Cycling for Highly Constrained IoT Devices

With increasing interest emerging towards the Internet of Things (loT) area, many new applications require embedded devices to integrate ever more sensors and communication interfaces while keeping hard constraints on battery life. We propose to go beyond classical radio duty cycling by disconnecting unused devices from the power supply, eliminating quiescent power consumption. Generalizing this technique to other sensors, we present a flexible IoT architecture, which we illustrate through an example industrial application and test results from an instrumented prototype.